3921610489 has 2 divisors, whose sum is σ = 3921610490. Its totient is φ = 3921610488.

The previous prime is 3921610447. The next prime is 3921610531. The reversal of 3921610489 is 9840161293.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (3921610447) and next prime (3921610531).

It can be written as a sum of positive squares in only one way, i.e., 3549776400 + 371834089 = 59580^2 + 19283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3921610489 is a prime.

It is not a weakly prime, because it can be changed into another prime (3921610409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960805244 + 1960805245.

It is an arithmetic number, because the mean of its divisors is an integer number (1960805245).

Almost surely, 2^3921610489 is an apocalyptic number.

It is an amenable number.

3921610489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3921610489 is an equidigital number, since it uses as much as digits as its factorization.

3921610489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 3921610489 is about 62622.7633452884. The cubic root of 3921610489 is about 1576.9629327978.

The spelling of 3921610489 in words is "three billion, nine hundred twenty-one million, six hundred ten thousand, four hundred eighty-nine".